When referring to the Spectral Atlas, please cite our publication:
Keller-Rudek, H., Moortgat, G. K., Sander, R., and Sörensen,
R.: The MPI-Mainz UV/VIS spectral atlas of gaseous molecules of
atmospheric interest, Earth Syst. Sci. Data, 5, 365–373, (2013),
DOI: 10.5194/essd-5-365-2013
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| DATAFILE: | CH2O_Cantrell(1990)_233K_300-357.5nm(2.5nm,int-c).txt |
| NAME: | formaldehyde, methanal |
| FORMULA: | CH2O |
| AUTHOR(YEAR): | Cantrell(1990) |
| T: | 233K |
| λ: | 300-357.5nm(2.5nm,int-c) |
| BIBLIOGRAPHY: |
C.A. Cantrell, J.A. Davidson, A.H. McDaniel, R.E. Shetter, and J.G. Calvert, "Temperature-dependent formaldehyde cross sections in the near-ultraviolet",
J. Phys. Chem. 94, 3902-3908 (1990);
DOI: 10.1021/j100373a008
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| COMMENTS: | The near-ultraviolet absorption cross sections have been measured at 223-293 K using Fourier transform spectroscopy at an instrumental resolution sufficiently high (1.00 cm-1 or approximately 0.011 nm at 330 nm) 300.0-357.5nm(2.5nm,int-c); i.e., high-resolution data averaged over the 2.5-nm intervals 300.0-302.5, 302.5-305.0,........., 355.0-357.5nm; first column: center of interval The temperature dependence between T = 223 and 293 K can be calculated by the relation σ(T) = A + B × (T - 273) = σ(273 K) + B × (T - 273) with the parameters: -------------------------------------------------------------------
λ A B
(nm) (cm2 molec.-1) (cm2 molec.-1 K-1)
---------------------------------------------------------------------
301.25 1.37e-20 -2.10e-24
303.75 4.43e-20 -4.73e-23
306.25 3.27e-20 -1.06e-23
308.75 2.24e-20 -7.24e-24
311.25 8.82e-21 2.48e-23
313.75 3.47e-20 -3.64e-23
316.25 3.94e-20 -2.30e-23
318.75 1.69e-20 6.59e-24
321.25 1.16e-20 -1.52e-23
323.75 4.71e-20 1.18e-24
326.25 4.61e-20 -8.86e-23
328.75 2.34e-20 -2.15e-23
331.25 1.31e-20 -1.53e-23
333.75 1.14e-21 4.32e-24
336.25 1.30e-21 5.03e-25
338.75 3.54e-20 -8.96e-23
341.25 8.98e-21 1.86e-23
343.75 1.31e-20 -2.64e-23
346.25 5.18e-22 9.57e-24
348.75 3.10e-22 4.38e-24
351.25 2.16e-21 9.48e-24
353.75 1.63e-20 -4.05e-23
356.25 9.91e-22 1.27e-23
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